2015/02/12 by Xiaoyan Zhou, Jianlong Kou, Zhou, Xiaoyan +9
Engineering · Physics and Astronomy · #Chemical Physics (physics.chem-ph) #Energy Harvesting in Wireless Networks #FOS: Physical sciences #Fluid Dynamics (physics.flu-dyn) #Mesoscale and Nanoscale Physics (cond-mat.mes-hall) #Nanopore and Nanochannel Transport Studies #Particle accelerators and beam dynamics #cond-mat.mes-hall #physics.chem-ph #physics.flu-dyn
paper · pdf · doi:10.48550/arxiv.1502.03832
10 pages, 4 figures
arxiv created 2015/02/12 · openalex publication_date 2015/02/12 · arxiv updated 2015/02/16 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Using molecular dynamics simulations, we propose a novel nanoscale watermill for unidirectional transport of water molecules through a curved single-walled carbon nanotube (SWNT). In this nanoscale system, a revolving charge is introduced to drive water chain confined inside the SWNT, which is served as nano waterwheel and nano engine. A resonance-like phenomenon is found that the revolving frequency of the charge plays a key role in pumping water chain. The water flux across the SWNT increases with respect to the revolving frequency of the external charge and reaches the maximum when the frequency is 4 THz. Correspondingly, the number of the hydrogen bonds of water chain inside the SWNT decreases dramatically with the frequency ranging from 4 THz to 25 THz. The mechanism behind the resonant phenomenon has been investigated systematically. Our findings are helpful for designing nanoscale fluidic devices and energy converters.